The Influence on Image Reconstruction Methods on Digital Breast Tomosynthesis Guided Vacuum-assisted Biopsy for Clustered Microcalcifications

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  • Kuwabara Natsumi
    Department of Radiological Technology, Mitsubishi Kyoto Hospital (Current address: Department of Radiological Technology, Faculty of Medical Science, Kyoto College of Medical Science)
  • Asano Sayaka
    Trust Clinic
  • Kawashima Hiroko
    Division of Health Sciences, Graduate School of Medical Sciences, Kanazawa University

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  • 画像再構成法が集簇性石灰化に対するディジタル乳房トモシンセシスガイド下吸引式組織生検に与える影響
  • ガゾウ サイコウセイホウ ガ シュウゾクセイ セッカイカ ニ タイスル ディジタル チブサ トモシンセシスガイド カ キュウインシキ ソシキセイケン ニ アタエル エイキョウ

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Abstract

<p>In this study, we verified the targeting time and coordinates of stereotactic vacuum-assisted biopsy (STVAB) and digital breast tomosynthesis-guided vacuum-assisted biopsy (DBTVAB). We used 23 fabricated phantom samples that consisted of small round, amorphous, and pleomorphic clustered microcalcifications, and two types of image reconstruction methods: filtered back projection (FBP) and iterative super-resolution reconstruction (ISR). Regarding targeting time, DBTVAB tended to be shorter than STVAB in the two image reconstruction methods and the targeting time was significantly shorter for the amorphous and pleomorphic calcifications using DBTVAB with FBP compared to that using STVAB (p=0.022 for amorphous, p=0.041 for pleomorphic). The targeting time for small round calcifications was longer using DBTVAB with ISR compared to that using STVAB (p=0.013). For targeting coordinates, using DBTVAB with FBP showed a significant difference only for pleomorphic calcifications but using DBTVAB with ISR showed no significance. The findings of this study suggest that FBP is more suitable than ISR to be used as an image reconstruction method, and DBTVAB can shorten the targeting time compared to STVAB.</p>

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